@Kevin Jones I did that, but kept looking at it every day! Have put it back on the easel, and plan to attack it again. Done nothing the last few days due to being offcolour - sore throat and cough. Not motivated. The Notan option is a good idea, but I don't have an iphone. Will look for maybe an android version.

@Kevin Jones I discovered another Notan option for myself. I belong to another group Draw Paint Academy which has a Notan tool. So I have used that and printed off the result. Hope it will help. Feeling better now, but still got a hacking cough!